Question

Find the product of: (i) (3x + 2y)( 3x – 2y). ​​

Answer 1

Step-by-step explanation:

Ans:- 3x + 2y * 3x - 2y * 9x2 + 4y2

= (3x + 2y) (3x - 2y) (9x2 + 4y2)

= (3x)2 - (2y)2 (9x2 + 4y2)

= (9x2 - 4y2) (9x2 + 4y2)

= (9x)2 - (4y)2

= 81x2 - 16y2

I hope I help U